US6242627B1 - Process for preparing primary aminoorganosilanes - Google Patents
Process for preparing primary aminoorganosilanes Download PDFInfo
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- US6242627B1 US6242627B1 US09/730,191 US73019100A US6242627B1 US 6242627 B1 US6242627 B1 US 6242627B1 US 73019100 A US73019100 A US 73019100A US 6242627 B1 US6242627 B1 US 6242627B1
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- Prior art keywords
- cyanoorganosilane
- group
- alkali metal
- metal alkoxide
- aminoorganosilane
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1892—Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
Definitions
- This invention relates to a process for preparing primary aminoorganosilanes. More particularly, the present invention relates to a process for preparing a primary aminoorganosilane by the catalyzed reaction of a cyanoorganosilane with hydrogen.
- a significant disadvantage to the process for making primary aminoorganosilanes described in U.S. Pat. No. 5,117,024 lies in its use of a supported cobalt catalyst.
- a supported cobalt catalyst is typically supplied in the passivated state, i.e., the cobalt particles are covered with a layer of oxide, in order to reduce the hazard of spontaneous combustion of the metal in an oxygen-containing environment such as air.
- the catalyst Before the catalyst can be used, it must be activated, generally by reduction with hydrogen at fairly high temperatures, e.g., 500EC and even higher.
- a process for preparing a primary aminoorganosilane comprises reacting a cyanoorganosilane with hydrogen under hydrogenation conditions and in the substantial absence of water in the presence of a catalytically effective amount of sponge cobalt to produce the primary aminoorganosilane.
- the starting cyanoorganosilane reactant herein is preferably one possessing the general formula
- each R 1 group is independently selected from the group consisting of alkyl and alkoxy radical of from 1 to about 10 carbon atoms, and R 2 is a divalent hydrocarbon radical of from 1 to about 20 carbon atoms.
- the R 1 radical can be, for example, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, dodecyl, methoxy, ethoxy, propoxy, isopropoxy, butoxy, phenyl and phenoxy.
- R 1 is preferably selected from the group consisting of methyl, methoxy, ethyl and ethoxy.
- the divalent radical R 2 can be, for example, a divalent radical of an alkane, cycloalkane, or an aromatic or aralkane compound.
- divalent radical R 2 can be, for example, a linear or branched alkylene group such as methylene, ethylene, 1,2-propylene, 1,3-propylene, 2-methyl-1,3-propylene, 3-methyl-1,3-propylene, 3,3-dimethyl-1,3-propylene, ethylidene or isopropylidene, a cycloalkylene group such as cyclohexylene or cycloheptylene, an arylene group such as phenylene, tolylene, xylylene or naphthylene, or the divalent group —C 6 H 4 —R 3 — in which R 3 is 10 methylene, ethylene, ptopylene, etc.
- cyanoorganosilanes which can be hydrogenated by the process of this invention include 2-cyanoethyltrimethysilane, 2-cyanoethyldimethylmethoxysilane, 2-cyanoethylmetbyldimethoxysilane, 2-cyanoethyltrimethoxysilane, 2-cyanoethyldimethylsilane, 2yanoethyldimethoxylsilane, 2-cyanoethyltriethoxysilane, 2-cyanoethyldimethylethoxysilane, 2-cyanoethylphenymethylsilane, 2-cyanoethylphenylmethoxysilane, 3-cyanomethyltriethoxysilane, 3cyanopropyltrtethylsilane, 3-cyanopropylmethyldimethylsilane and 3-cyanopropylmethyldimethoxysilane.
- the reaction of the starting cyanoorganosilane with hydrogen in the presence of sponge cobalt catalyst to provide the desired primary aminoorganosilane in accordance with this invention can be carried out in known and conventional high pressure reactors.
- the reactor can be, for example, a fixed bed, stirred-bed or fluidized-bed type reactor.
- the process can be run as a batch process or as a continuous process.
- a stirred-bed reactor is preferred.
- the reaction tends to be rapid and is generally determined by the amount of catalyst, the pressure of the reactor, reaction temperature and related factors as appreciated by those skilled in the art.
- residence times of from about 0.2 hours to about 5.0 hours provide acceptable results
- the process herein be carried out in the presence of a molar excess of hydrogen, preferably two or more moles of hydrogen per mole of the selected cyanoorganosilane starting reactant.
- a molar excess of hydrogen preferably two or more moles of hydrogen per mole of the selected cyanoorganosilane starting reactant.
- hydrogen is added in excess at a concentration sufficient to maintain the pressure within the reactor within the range of from about 200 psig to about 2000 psig, and more preferably within the range of from about 500 psig to about 1000 psig, since these pressures permit the use of standard high pressure reactors.
- the present process can conventionally be conducted at a temperature within the range of from about 50EC to about 250EC, and preferably at from about 100EC to about 200EC.
- the sponge cobalt catalyst employed in the process of this invention can conveniently be selected from among any of several kinds that are commercially available, e.g., Raney7 cobalt, type 2724, from W. R. Grace and Co-0138P from Englehard Corp. If desired and for particular applications, the sponge cobalt can be combined with one or more other catalytically active components, e.g., one or more metals of Group 6B and/or 8B of the Periodic Table of the Elements such as chromium, nickel and/or iron. These metals can be combined with the sponge cobalt catalyst employing any known or conventional process such as doping.
- Raney7 cobalt type 2724
- W. R. Grace and Co-0138P from Englehard Corp.
- the sponge cobalt can be combined with one or more other catalytically active components, e.g., one or more metals of Group 6B and/or 8B of the Periodic Table of the Elements such as chromium, nickel and/or iron. These metals can
- the amount of sponge cobalt catalyst employed in the process of this invention can vary widely provided, of course, that a catalytically effective amount of the catalyst is present.
- Useful amounts of sponge-cobalt catalyst can range from about 0.05 to about 20 weight percent, and preferably from about 0.5 to about 1 weight percent, based on the weight of the cyanoorganosilane reactant.
- the sponge cobalt catalyst it is convenient to add the sponge cobalt catalyst to the reactor as a slurry, e.g., in a quantity of the intended product primary aminoorganosilane. While the starting cyanoorganosilane could also be utilized for this purpose, it is preferable not to do so since on standing, there may be a tendency of the cyano functionality to result in some poisoning of the catalyst.
- liquid water and/or water vapor is to be substantially avoided as water tends to result in polymerization of some product primary aminoorganosilane to a polysiloxane. It is therefore advantageous to purge the reactor, once sealed, with an inert gas such as nitrogen to substantially remove any water that may be present.
- the process of this invention can, if desired, be conducted in the presence of an organic solvent as the use of an organic solvent may increase the rate and/or yield of the process without, however, significantly affecting its selectivity for the desired primary aminoorganosilane.
- the organic solvent can be a polar or non-polar solvent with a polar solvent, for example, an alkanol such as methanol, ethanol, propanol or isopropanol, being preferred.
- an alkanol solvent it is preferred that the allanol correspond to any alkoxy group(s) R 1 that may be present in the starting cyanoorganosilane reactant in order to minimize or avoid transesterification.
- the alkanol solvent of choice would be methanol.
- the solvent be present at from about 5 to about 50 weight percent, and preferably from about 10 to about 20 weight percent, of the total reaction mixture.
- the starting cyanoorganosilane reactant can be diluted in the solvent with the cyanoorganosilane comprising from about 50 to about 95 weight percent, and preferably from about 80 to about 90 weight percent, of the liquid feed to the reactor.
- a substantially anhydrous base e.g., an alkali metal alkoxide such as lithium methoxide, lithium ethoxide, sodium methoxide, sodium ethoxide, potassium methoxide, potassium ethoxide, anhydrous ammonia, their combinations, and the like, to suppress or inhibit the production of secondary aminoorganosilane.
- an alkali metal alkoxide such as lithium methoxide, lithium ethoxide, sodium methoxide, sodium ethoxide, potassium methoxide, potassium ethoxide, anhydrous ammonia, their combinations, and the like.
- the alkali metal alkoxides are preferred.
- the amount of base added can range from about 0.01 to about I weight percent, and preferably from about 0.05 to about 0.1 weight percent, based on the weight of the sponge cobalt catalyst.
- a solvent e.g., the parent alkanol of the alkoxide
- a solvent e.g., the parent alkanol of the alkoxide
- lithium methoxide can be added as a solution in methanol, sodium ethoxide as a solution in ethanol, etc.
- at least one R 1 group in the starting cyanoorganosilane reactant is an alkoxy group
- the preferred alkoxide would be a methanol solution of an alkali metal methoxide such as lithium methoxide, sodium methoxide or potassium methoxide.
- this reaction can additionally employ a different substantially anhydrous base such as anhydrous ammonia to contribute to the suppression of secondary amine formation.
- the product primary aminoorganosilane can be recovered by any known or conventional procedure for separating liquid-solid mixtures and mixtures of liquids, for example, filtration andlor distillation.
- Primary aminoorganosilanes that can be produced by the present process include, for example, 3-aminopropyltrimethylsilane, 3-aminopropyldimethylmethoxysilane, 3-aminopropylmethyldimethoxysilane, 3-aminopropyltrirnethoxysilane, 3-aminopropyldimethylsilane, 3-aminopropyldimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropyldimethylethoxysilane, 3-aminopropylphenylmethylsilane, 3-aminopropylphenylmethoxysilane, 2-aminoethyltrietioxysilane, 4-aminobutyltrinethylsilane, 4-aminobutyldimethysilane and 4-aminobutylmethyldimethoxysilane.
- the reactor Upon addition of the catalyst slurry, the reactor was sealed, purged with nitrogen and then twice pressurized with 200 psig hydrogen and vented to atmospheric pressure. The reactor was then pressurized to 500 psi with hydrogen and heated to 145EC with agitation. The reaction was allowed to continue for five hours, or until hydrogen uptake appeared to have stopped, before cooling to room temperature, venting, and discharging the reactor contents. Samples were taken periodically during the reaction with the progress of the reaction being shown in Table I as follows:
- Nitrile cyanoethyltrimethoxysilane.
- Primary amine 3 aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
- the reactor was sealed, purged with nitrogen and then twice pressurized with 200 psig hydrogen and vented to atmospheric pressure. The reactor was then pressurized to 500 psi with hydrogen and heated to 145EC with agitation. The reaction was allowed to continue for three hours, or until hydrogen uptake appeared to have stopped, before cooling to room temperature, venting, and discharging the reactor contents. Samples were taken periodically during the reaction with the progress of the reaction being shown in Table II as follows:
- Nitrile Primary Secondary Uneluted Time (hrs) (wt %) Amine (wt %) Amine (wt %) Heavies (wt %) 0.5 92.0 5.77 0 0 1 77.7 16.9 3.44 0 1.5 58.6 31.6 6.98 0 2 33.3 54.8 8.5 0.7 2.5 7.9 79.0 9.98 0.3 3 1.9 86.8 10.17 0
- Nitrile cyanoethyltrimethoxysilane.
- Primary amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-trimethoxysilyl)propyl]amine.
- Nitrile Primary Secondary Uneluted Time (hrs) (wt %) Amine (wt %) Amine (wt %) Heavies (wt %) 0.5 89.8 5.78 1.2 0 1 72.056 16.25 5.8 2.9 1.5 56.1 26.25 9.5 4.5 2 34.4 43.5 13.7 5.6
- Nitrile cyanoethyltrimethoxysilane.
- Primary amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
- Nitrile Primary Secondary Uneluted Time (hrs) (wt %) Amine (wt %) Amine (wt %) heavies (wt %) 0.5 59.461 31.77 2.38 3.4 1 1.804 82.14 7.38 6.3 1.5 1.506 82.15 10.5 4.17
- Nitrile cyanoethyltrimethoxysilane.
- Primary Amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
- Primary amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
- the reactor was sealed, purged with nitrogen and then twice pressurized with 200 psig hydrogen and vented to atmospheric pressure. To the reactor was then added 42.3 g of anhydrous ammonia, and then pressurized to 500 psi with hydrogen. The reactor was subsequently heated to 160EC and the stirrer speed increased to 1000 rpm. The reaction was allowed to continue for three hours, or until hydrogen uptake appeared to have stopped, before cooling to room temperature, venting, and discharging the reactor contents. Samples were taken periodically during the reaction with the progress of the reaction being shown in Table VI as follows:
- Nitrile Primary Secondary Uneluted Time (hrs) (wt%) Amine (wt %) Amine (wt %) Heavies (wt %) 0.5 86.98 18.047 0 0 1 22.3 77 0 0 1.5 2.45 94 1 0
- Nitrile cyanoethyltrimethoxysilane.
- Primary amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
- Nitrile Primary Secondary Uneluted Time (hrs) (wt%) Amine (wt %) Amine (wt %) Heavies (wt %) 0.5 96.6 2 0 0 1 84.7 10.6 2.2 0 1.5 68.7 21.95 2.2 0 2 52.431 33.6 1.1 0 3 7.77 74.2 10.2 0
- Nitrile cyanoethyltrimethoxysilane.
- Primary amine 3-aminopropyltrimethoxysilane.
- Secondary amine Bis-[3-(trimethoxysilyl)propyl]amine.
Abstract
Description
TABLE I | ||||
Secondary | ||||
Primary | Amine | Uneluted | ||
Time (hrs) | Nitrile (wt %) | Amine (wt %) | (wt %) | Heavies (wt %) |
1 | 73.7 | 22.6 | 0.41 | 0.49 |
2 | 46.0 | 49.9 | 0.83 | 0.5 |
3 | 23.7 | 72.1 | 1.48 | 0.5 |
4 | 8.5 | 85.5 | 1.9 | 0.2 |
5 | 1.47 | 88.8 | 1.1 | 5.9 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3 aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
TABLE II | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt %) | Amine (wt %) | Amine (wt %) | Heavies (wt %) |
0.5 | 92.0 | 5.77 | 0 | 0 |
1 | 77.7 | 16.9 | 3.44 | 0 |
1.5 | 58.6 | 31.6 | 6.98 | 0 |
2 | 33.3 | 54.8 | 8.5 | 0.7 |
2.5 | 7.9 | 79.0 | 9.98 | 0.3 |
3 | 1.9 | 86.8 | 10.17 | 0 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-trimethoxysilyl)propyl]amine. |
TABLE III | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt %) | Amine (wt %) | Amine (wt %) | Heavies (wt %) |
0.5 | 89.8 | 5.78 | 1.2 | 0 |
1 | 72.056 | 16.25 | 5.8 | 2.9 |
1.5 | 56.1 | 26.25 | 9.5 | 4.5 |
2 | 34.4 | 43.5 | 13.7 | 5.6 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
TABLE IV | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt %) | Amine (wt %) | Amine (wt %) | heavies (wt %) |
0.5 | 59.461 | 31.77 | 2.38 | 3.4 |
1 | 1.804 | 82.14 | 7.38 | 6.3 |
1.5 | 1.506 | 82.15 | 10.5 | 4.17 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary Amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
TABLE V | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt%) | Amine (wt %) | Amine (wt %) | Heavies (wt %) |
0.5 | 88.0 | 10.5 | 0.33 | 0 |
1 | 71.0 | 25.8 | 1.6 | 0 |
2 | 32.75 | 62.0 | 2.2 | 1.0 |
3 | 6.1 | 89.8 | 1.9 | 0.5 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
TABLE VI | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt%) | Amine (wt %) | Amine (wt %) | Heavies (wt %) |
0.5 | 86.98 | 18.047 | 0 | 0 |
1 | 22.3 | 77 | 0 | 0 |
1.5 | 2.45 | 94 | 1 | 0 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
TABLE VII | ||||
Nitrile | Primary | Secondary | Uneluted | |
Time (hrs) | (wt%) | Amine (wt %) | Amine (wt %) | Heavies (wt %) |
0.5 | 96.6 | 2 | 0 | 0 |
1 | 84.7 | 10.6 | 2.2 | 0 |
1.5 | 68.7 | 21.95 | 2.2 | 0 |
2 | 52.431 | 33.6 | 1.1 | 0 |
3 | 7.77 | 74.2 | 10.2 | 0 |
Nitrile = cyanoethyltrimethoxysilane. | ||||
Primary amine = 3-aminopropyltrimethoxysilane. | ||||
Secondary amine = Bis-[3-(trimethoxysilyl)propyl]amine. |
Claims (23)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/730,191 US6242627B1 (en) | 2000-12-05 | 2000-12-05 | Process for preparing primary aminoorganosilanes |
DK01999569T DK1339727T3 (en) | 2000-12-05 | 2001-10-31 | Process for Preparation of Primary Amino Organosilanes |
DE60123108T DE60123108T2 (en) | 2000-12-05 | 2001-10-31 | PROCESS FOR THE PREPARATION OF PRIMARY AMINOORGANOSILANES |
EP01999569A EP1339727B1 (en) | 2000-12-05 | 2001-10-31 | Process for preparing primary aminoorganosilanes |
ES01999569T ES2271127T3 (en) | 2000-12-05 | 2001-10-31 | PROCEDURE FOR THE PREPARATION OF PRIMARY AMINO ORGANOSILANS. |
PT01999569T PT1339727E (en) | 2000-12-05 | 2001-10-31 | Process for preparing primary aminoorganosilanes |
AT01999569T ATE339428T1 (en) | 2000-12-05 | 2001-10-31 | METHOD FOR PRODUCING PRIMARY AMINOORGANOSILANES |
PCT/US2001/045261 WO2002046202A1 (en) | 2000-12-05 | 2001-10-31 | Process for preparing primary aminoorganosilanes |
CNB01820113XA CN1295235C (en) | 2000-12-05 | 2001-10-31 | Method for preparing primary aminoorganosilanes |
EP05027387A EP1634885A1 (en) | 2000-12-05 | 2001-10-31 | Process for preparing primary aminoorganosilanes |
CNA2006100941299A CN1896080A (en) | 2000-12-05 | 2001-10-31 | Process for preparing primary aminoorganosilanes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/730,191 US6242627B1 (en) | 2000-12-05 | 2000-12-05 | Process for preparing primary aminoorganosilanes |
Publications (1)
Publication Number | Publication Date |
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US6242627B1 true US6242627B1 (en) | 2001-06-05 |
Family
ID=24934326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/730,191 Expired - Fee Related US6242627B1 (en) | 2000-12-05 | 2000-12-05 | Process for preparing primary aminoorganosilanes |
Country Status (9)
Country | Link |
---|---|
US (1) | US6242627B1 (en) |
EP (2) | EP1634885A1 (en) |
CN (2) | CN1896080A (en) |
AT (1) | ATE339428T1 (en) |
DE (1) | DE60123108T2 (en) |
DK (1) | DK1339727T3 (en) |
ES (1) | ES2271127T3 (en) |
PT (1) | PT1339727E (en) |
WO (1) | WO2002046202A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6417381B1 (en) | 2001-11-15 | 2002-07-09 | Crompton Corporation | Process for preparing bis(silylorgano)amines |
FR2830013A1 (en) * | 2001-09-21 | 2003-03-28 | Rhodia Chimie Sa | Preparation of halogenated monoorganoxysilanes and functionalised derivatives of these, useful as synthetic intermediates |
FR2830014A1 (en) * | 2001-09-21 | 2003-03-28 | Rhodia Chimie Sa | Preparation of halogenated monoorganoxysilanes from halogenoalkylsilanes with substitution of silicon with a divalent motif attached to an electrophile, useful as synthetic intermediates |
WO2003070734A1 (en) * | 2002-02-19 | 2003-08-28 | General Electric Company | Preparation of n-substituted aminoorganosilanes |
US20060025506A1 (en) * | 2004-07-30 | 2006-02-02 | Weller Keith J | Silane compositions, processes for their preparation and rubber compositions containing same |
US20060281841A1 (en) * | 2004-07-30 | 2006-12-14 | Weller Keith J | Silane compositions, processes for their preparation and rubber compositions containing same |
DE102009000500A1 (en) | 2009-01-30 | 2010-08-05 | Wacker Chemie Ag | Process for the preparation of bis- and tris (silylorgano) amines |
US20230059783A1 (en) * | 2021-08-04 | 2023-02-23 | Shin-Etsu Chemical Co., Ltd. | Method for Producing Organosilicon Compound Having Ketimine Structure |
WO2023146815A1 (en) | 2022-01-25 | 2023-08-03 | Chemours-Mitsui Fluoroproducts Co., Ltd | Polytetrafluoroethylene granulated powder and method for producing the same |
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EP3535344A1 (en) * | 2016-11-04 | 2019-09-11 | Saudi Arabian Oil Company | Water-based sealing compositions with aminosilane crosslinkers |
CN106749386A (en) * | 2017-01-17 | 2017-05-31 | 荆州市江汉精细化工有限公司 | A kind of amino silane product synthesis technique |
CN107235998B (en) * | 2017-06-20 | 2019-11-19 | 江西宏柏新材料股份有限公司 | The preparation method of amino silane |
KR102293698B1 (en) * | 2018-02-06 | 2021-08-27 | 와커 헤미 아게 | Method for preparing aminopropylalkoxysilane |
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US5117024A (en) | 1991-08-06 | 1992-05-26 | Dow Corning Corporation | Process for preparation of primary aminoorganosilanes |
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US3657304A (en) * | 1969-11-28 | 1972-04-18 | Gen Electric | Bis(cyanoorganosilyl)hydrocarbons bis (aminoorganosilyl)hydrocarbons and methods for making them |
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2000
- 2000-12-05 US US09/730,191 patent/US6242627B1/en not_active Expired - Fee Related
-
2001
- 2001-10-31 ES ES01999569T patent/ES2271127T3/en not_active Expired - Lifetime
- 2001-10-31 EP EP05027387A patent/EP1634885A1/en not_active Withdrawn
- 2001-10-31 WO PCT/US2001/045261 patent/WO2002046202A1/en active IP Right Grant
- 2001-10-31 AT AT01999569T patent/ATE339428T1/en not_active IP Right Cessation
- 2001-10-31 DK DK01999569T patent/DK1339727T3/en active
- 2001-10-31 EP EP01999569A patent/EP1339727B1/en not_active Expired - Lifetime
- 2001-10-31 CN CNA2006100941299A patent/CN1896080A/en active Pending
- 2001-10-31 CN CNB01820113XA patent/CN1295235C/en not_active Expired - Fee Related
- 2001-10-31 PT PT01999569T patent/PT1339727E/en unknown
- 2001-10-31 DE DE60123108T patent/DE60123108T2/en not_active Expired - Fee Related
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Title |
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Cited By (18)
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US7659417B2 (en) | 2001-09-21 | 2010-02-09 | Rhodia Operations | Process for obtaining halogenated monoorganoxysilanes which can be used in particular as synthesis intermediates |
US7709672B2 (en) | 2001-09-21 | 2010-05-04 | Rhodia Chimie | Method for obtaining halogenated monoorganoxysilanes useful in particular as synthesis intermediates |
EP1637536A1 (en) | 2001-09-21 | 2006-03-22 | Rhodia Chimie | Process for preparing halogenated monoorganoxysilanes useful as intermediates |
FR2830013A1 (en) * | 2001-09-21 | 2003-03-28 | Rhodia Chimie Sa | Preparation of halogenated monoorganoxysilanes and functionalised derivatives of these, useful as synthetic intermediates |
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US20230059783A1 (en) * | 2021-08-04 | 2023-02-23 | Shin-Etsu Chemical Co., Ltd. | Method for Producing Organosilicon Compound Having Ketimine Structure |
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Also Published As
Publication number | Publication date |
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EP1339727B1 (en) | 2006-09-13 |
ATE339428T1 (en) | 2006-10-15 |
CN1896080A (en) | 2007-01-17 |
PT1339727E (en) | 2006-11-30 |
CN1479743A (en) | 2004-03-03 |
DE60123108T2 (en) | 2006-12-21 |
WO2002046202A1 (en) | 2002-06-13 |
CN1295235C (en) | 2007-01-17 |
ES2271127T3 (en) | 2007-04-16 |
DK1339727T3 (en) | 2007-01-29 |
EP1634885A1 (en) | 2006-03-15 |
EP1339727A1 (en) | 2003-09-03 |
DE60123108D1 (en) | 2006-10-26 |
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